clkfx: remove

diff --git a/milkymist/clkfx/__init__.py b/milkymist/clkfx/__init__.py
deleted file mode 100644 (file)
index e90183e..0000000
--- a/milkymist/clkfx/__init__.py
+++ /dev/null
@@ -1,38 +0,0 @@
-from fractions import Fraction
-
-from migen.fhdl.structure import *
-
-class ClkFX:
-       def __init__(self, infreq, outfreq):
-               self.clkin = Signal()
-               self.clkout = Signal()
-               
-               ratio = Fraction(outfreq)/Fraction(infreq)
-               appr = ratio.limit_denominator(32)
-               m = appr.numerator
-               if m < 2 or m > 32:
-                       raise OverflowError
-               d = appr.denominator
-               
-               in_period = float(Fraction(1000000000)/Fraction(infreq))
-               
-               self._inst = Instance("DCM_SP",
-                       [("CLKFX", self.clkout)],
-                       [("CLKIN", self.clkin),
-                       ("PSEN", BV(1)),
-                       ("RST", BV(1))],
-                       [("CLKDV_DIVIDE", 2.0),
-                       ("CLKFX_DIVIDE", d),
-                       ("CLKFX_MULTIPLY", m),
-                       ("CLKIN_DIVIDE_BY_2", "FALSE"),
-                       ("CLKIN_PERIOD", in_period),
-                       ("CLKOUT_PHASE_SHIFT", "NONE"),
-                       ("CLK_FEEDBACK", "NONE"),
-                       ("DESKEW_ADJUST", "SYSTEM_SYNCHRONOUS"),
-                       ("DUTY_CYCLE_CORRECTION", "TRUE"),
-                       ("PHASE_SHIFT", 0),
-                       ("STARTUP_WAIT", "TRUE")]
-               )
-
-       def get_fragment(self):
-               return Fragment([self._inst.ins["PSEN"].eq(0), self._inst.ins["RST"].eq(0)], instances=[self._inst])